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serve current directory from command line
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I've never seen anything as compact as
python3 -m http.server
You can optionally add a port number to the end:
python3 -m http.server 9000
See https://docs.python.org/library/http.server.html
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Why is using 'eval' a bad practice?
... is a vector for code injection, and is dangerous in a way that most other Python functions are not. That doesn't mean you shouldn't use it at all, but I think you should use it judiciously.
– Owen S.
Aug 19 '11 at 16:52
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How to convert IPython notebooks to PDF and HTML?
I want to convert my ipython-notebooks to print them, or simply send them in html format. I have noticed that there exists a tool to do that already, nbconvert . Although I have downloaded it, I have no idea how to convert the notebook, with nbconvert2.py since nbconvert says that it is deprecated....
How to automatically add user account AND password with a Bash script?
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I was asking myself the same thing, and didn't want to rely on a Python script.
This is the line to add a user with a defined password in one bash line:
useradd -p $(openssl passwd -crypt $PASS) $USER
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How can I profile Python code line-by-line?
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Does line_profiler work with Python 3? I couldn't get any information on that.
– user1251007
Jul 23 '12 at 15:02
3
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How do you normalize a file path in Bash?
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A portable and reliable solution is to use python, which is preinstalled pretty much everywhere (including Darwin). You have two options:
abspath returns an absolute path but does not resolve symlinks:
python -c "import os,sys; print(os.path.abspath(sys.argv[1]))" ...
multiprocessing: How do I share a dict among multiple processes?
...art()
p2.start()
p1.join()
p2.join()
print d
Output:
$ python mul.py
{1: '111', '2': 6}
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Why do you need to put #!/bin/bash at the beginning of a script file?
... most systems run bash, the "Bourne Again Shell"), scripts can be in bash, python, perl, ruby, PHP, etc, etc. For example, you might see #!/bin/perl or #!/bin/perl5.
PS:
The exclamation mark (!) is affectionately called "bang". The shell comment symbol (#) is sometimes called "hash".
PPS:
Rememb...
Syntax highlighting/colorizing cat
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I'd recommend pygmentize from the python package python-pygments. You may want to define the following handy alias (unless you use ccat from the ccrypt package).
alias ccat='pygmentize -g'
And if you want line numbers:
alias ccat='pygmentize -g -O style...
Is there still any reason to learn AWK?
... the best tool for the job... and now even though his students like me use python and what not, he sticks to what he knows and works well.
In closing, there is a lot of old code kicking around the world, knowing a little awk isn't going to hurt. It will also make you better *nix person :-)
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